Hands down Orient Beach. Please do not act surprised when you arrive and it is clothing optional. Every cruise excursion descriptions explain that. We visit St Martin and Orient Beach at least 1-2 times a year. When staying from more than a cruise day, we stay at Orient Beach at a woderful small resort La Plantation. Even if we take an excursion from the ship we always take that tour. We eat the lunch provided, enjoy our free drink, and then head down to Club O. It is just beyond Pedros's and the sign. Camp out right in front of Club O's bar. It is really something you have to experience. Go with an open mind, and who knows, after a few trips you will join everyone at Club O.